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Finding the Fourth Proportional to 839,998, 1,259,997 and 249,022

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Solution

The fourth proportional to 839,998, 1,259,997 and 249,022 is: 373,533

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,998 : 1,259,997 = 249,022 : x
  2. Step 2: Convert to fraction form
    839,998/1,259,997 = 249,022/x
  3. Step 3: Cross multiply
    839,998x = 1,259,997 × 249,022
  4. Step 4: Simplify right side
    839,998x = 313,766,972,934
  5. Step 5: Solve for x
    x = 313,766,972,934/839,998
  6. Step 6: Final answer
    x = 373,533

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.